What does a geometric tolerance value of .005 mean?

• A. This indicates a feature can vary by up to five thousandths of an inch
• B. This indicates a feature must remain within five inches
• C. This indicates a feature can have no more than five deviations
• D. This indicates a feature requires five separate measurements

Answer: (A)

A geometric tolerance value of .005 signifies that a feature can vary by up to five thousandths of an inch. This value establishes a maximum allowable deviation from a specified geometric condition. Essentially, it indicates how much a certain feature on a part can deviate from its true position or desired form without compromising the part's functionality or the assembly process.

In engineering and manufacturing contexts, maintaining tolerance is critical to ensuring parts fit and function properly within an assembly. When a tolerance value is specified as .005, it emphasizes precision, which is particularly important for tightly fitted components or critical surface features.

Other interpretations, such as measuring five inches or indicating a maximum number of deviations or measurements, do not accurately reflect the meaning of geometric tolerances. Thus, the interpretation of .005 as an allowable variation encapsulates the fundamental aspect of how closely a feature must adhere to a design specification.